class Student{
  public String name;
  public int age;
  public int id;
}

public class StudentTest {
  public static void main (String args[]) {
    Student s = new Student();
    s.name = "renyin";
    s.age = 19;
    s.id = 20165212;

    System.out.println("学生信息：姓名："+s.name +
                       "  年龄：" + s.age + "  学号：" + s.id);

}
}
